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Metric Threading Configuration
Install a spacer or an end gear in the Z1 and L
positions, as applicable. Install end gears in the
Z2, Z3, and Z4 positions. Mesh the Z1 gear with
the Z4 gear, and mesh the Z3 gear with the L
gear, as applicable. Or mesh the Z2 gear with the
Z3 gear, and mesh the Z4 gear with the L gear, as
applicable. Just like the Z1/Z2 and Z3/Z4 gears,
the L gear can be installed in either the inner or
outer position on the shaft. The "H" designation
in the L row shown in the chart below indicates a
spacer is to be installed in that position.
Loosen the mounting hardware necessary and
adjust backlash to between 0.002"–0.004".
Tighten the hardware once the adjustment is
complete and the gears are meshed correctly. Set
the feed rate selector to A, B, or C.
End Gear
Configuration
Z
Z
70
80
63 75
45
Z Z
55 30
80
L
H
75
H
60
0.5
C
0.4
A
0.8
1.0
B
2.0
Feed Rate
Selector
Figure 73. Metric TPI threading configuration.
Z2 Position
Z1 Position
Z3 Position
Z4 Position
L Position
Figure 74. Metric feed chart end gears.
Model G0949G (Mfd. Since 01/22)
H
40 45 50
70
80
63
80
80
63
80
63
80
H
H
60
H
50
0.75
1.25
1.75
1.5
2.5
3.0
3.5
End-Gear Configuration Example
Follow the example below to better understand
how to read the gear charts and configure the end
gears accordingly.
Tools Needed
Hex Wrench 5mm .............................................. 1
Open-End Wrench 5mm .................................... 1
To configure end gears for threading 22 TPI:
1.
Locate 22 TPI on inch thread chart, then look
at numbers provided at the top of column.
These are end gears that need to be used
in 22 TPI configuration. Note the feed rate
selector setting (see Figure 75).
End Gear
Positions
Z Z
H
70
H
70
H
70
Z
Z
45 40
50
75
40
50
H
60
H
80
H
L
90
B
9
10
8
A
16
18
20
C
32
36
40
Feed Rate
Selector
Figure 75. 22 TPI threading configuration.
2.
DISCONNECT MACHINE FROM POWER!
3.
Remove end-gear cover.
4.
Collect 70T, 40T, 55T, and 80T end gears.
Qty
End Gear
Configuration
H
70
H
55
H
80
H
60
40
55 50
75
30
60
40 70
80
H
80
H
65
H
80
H
11
12
13
14
22
24
26
28
44
48
52
56
22 TPI
-53-
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